Trapezoid Problems - base1, base2, height and area

Given that side b1 is parallel to side b2 and h is the vertical height between b1 and b2, the area of the trapezoid is given by the formula:

A =

Read the lesson on area of trapezoid if you need to learn how to calculate the area of a trapezoid.

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

Find the missing measurement of each trapezoid.
(Remember to include the relevant unit or square unit in your answer)

height = 6 cmb1 = 15 cmb2 = 22 cmarea =

height = 17 mmb1 = 28 mmb2 = area = 314.5 square mm

height = 12 mmb1 = b2 = 28 mmarea = 270 square mm

height = b1 = 19 mmb2 = 10 mmarea = 232 square mm

height = 26 mmb1 = b2 = 7 mmarea = 442 square mm

height = 29.7 mb1 = 28.1 mb2 = area = 534.6 square m

height = b1 = 17.2 cmb2 = 27.6 cmarea = 145.6 square cm

height = 6 mmb1 = 17 mmb2 = 19 mmarea =

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